姉妹 しまい喧嘩 けんかじゃなかったです
shimai kenkajanakattadesu

Noun
Desu Copula

The polite, past negative form of 姉妹喧嘩

1. It wasn't a sisterly quarrel.; It wasn't a fight between sisters.

Past/Perfective
Negative
Polite
Casual Register